Parameters:

• params Object
  • [username] String optional

    The username to be used for authentication. This parameter is optional here as you may also provide the same parameter when you call the authenticate function.

  • [apiKey] String optional

    The API key to be used for

  • [region] String optional

    The region to be used for this client. This parameter is optional; you may also provide the same parameter when you call the authenticate function. If neither of these two functions get this parameter, then the account's default region will be used. authentication. This parameter is optional here as you may also provide the same parameter when you call the authenticate function.